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PCA9535PWG4 from TI/BB,Texas Instruments

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PCA9535PWG4

Manufacturer: TI/BB

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-TSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9535PWG4 TI/BB 8 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-TSSOP -40 to 85 The **PCA9535PWG4** from Texas Instruments is a versatile 16-bit I/O expander designed to enhance system flexibility by providing additional GPIO ports through an I²C-bus interface. This low-power CMOS device is ideal for applications requiring extra I/O lines, such as industrial control systems, consumer electronics, and embedded solutions.  

Featuring programmable input/output pins, the PCA9535PWG4 allows each port to be individually configured as an input or output, supporting both 3.3V and 5V logic levels. It includes interrupt output functionality, enabling efficient event-driven designs by signaling changes on input pins. With a wide operating voltage range (2.3V to 5.5V), it accommodates various power supply configurations while maintaining low standby current consumption.  

The device supports hot insertion, making it suitable for applications requiring dynamic module replacement. Its robust ESD protection ensures reliability in harsh environments. The PCA9535PWG4 comes in a TSSOP-24 package, offering a compact footprint for space-constrained designs.  

Engineers favor this expander for its ease of integration, scalability, and compatibility with standard I²C protocols. Whether expanding microcontroller I/O or simplifying system design, the PCA9535PWG4 delivers a reliable and efficient solution for modern electronic applications.

Application Scenarios & Design Considerations

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-TSSOP -40 to 85

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